Lubricating device



Patented Feb. 7, 1 939 wnnrca'rmc nEvicE Harry R. Tear, Evanston, Ill; asoignor to The Lubrication Corporation,

ration of Delaware Chicago, 11L, a corpo- Application September 19, 1936, Serial No. 101,ii75

8 Claims. (Cl. ass-97) This invention relates to lubricating devices and more particularly to angularly adjustable lubricant discharge nozzles and to locking therefor. a One of the objects of the present invention is to provide an 'angularly adjustable discharge nozzle including locking means which-can be operated without causing relative'axial' of the nozzle parts.

Another object of the invention is to provide an angularly adjustable nozzle'which is simple and cheap to construct and is positive in operaon. 1

Other obiects, advantages and novel features of the invention will be apparent from the folmeans lowing detail description when read in connection with the accompanying drawing, in which: Figure l-is a side view, with parts in section, of a lubricant discharge nozzle embodying the invention.

Figure 2 is a partial view similar to Figure 1 showing parts in a different position;

Figure 3 is a partial section on the line III-III of Figure 1; and i Figure 41s a side view with parts in section of a modified form of invention. v

The nozzle illustrated is somewhat similar to the nozzle disclosed and claimed in my copending application Serial No. 46,640, and comprises a rigid conduit member I formed at one end with Y I a screw threaded socket 2 for attachment to any suitable type of lubricant dispenser such. i'or example, as the grease gun disclosed in my above mentioned application. The conduit member I terminates at its oppositeend in a head portion- 3 formed with a cylindrical bore 4 whose axis is arranged at an-acute angle, preferably between 40? and 50, to the axis of the conduit member I. The socket 2 and bore 4 are connected by a lubricant passage 6 whereby lubricant forced into the socket may flow freely into the bore 4. The

outer end of the bore 4 is enlarged as indicated at 8 and is formed with a series of peripheral locking teeth I for a purpose to appear later.

A nozzle member 8 is adapted to be secured to the conduit member I and is formed with an angular bend equal to the angle between the conduit member land the cylindrical bore 4.

.. The-nozzle member 8 carries a suitable nozzle 8 or any desired type which is formed'ior sealing engagement with a lubricant receiving fitting and is attached to the conduit member I by means of a tubular plug II having an opening I2 communicating with the cylindrical bore 4. Th

plug II is screw-threaded to the member 8 and movement 7 is formed with an-enlarged circular. flange of the bore l. I! desired. suitable sealing washconduit member 8 against relative rotation, a

locking member I6 is splined to the outer end of the member II as best seen in Figure 3 and is formed around its periphery with a series of locking teeth I! for engagement with theteeth I. The locking member I8 is urged outwardly of the member II by a coil spring I8 and is retained thereon-by a suitable bolt I8 secured to the member II and having an enlarged head lying within a depression M in the locking member I6.

The parts will normally occupy the position shown in Figure 1 in which the spring I8 urges the locking member I6 outwardly of the member 'be prevented and the nozzle member 8 and nozzle 8 will be held against the member I.

When it is desired to adjust the relative annular positions of members I and 8 the locking member l6 may be forced inwardly against the movement relative to is or" substantially the same diameter as-the diameter ers Il may be provided between the bore 4 and the member II to prevent leakage of lubricant 'therebetween, the washers ll being held in place spring I8 to'th' position shown in Figure 2 in which the teeth 1 and I! are out of register. In

this position the nozzle member 8 may be rotated freely relative to the conduit member I to any desired position. Upon release of the locking 'member I 8, the spring I8 will again urge it outwardly to the position of Figure 1 wherebythe It will be noted teeth 'I and I"! will again register and will lock the members I and 8 against further relative movement.

unlocking operations 'there is no-relative move-1 mer t between'the members I and 8 and that the I space in the bore 4 around the member II will not-be decreased. Thus the locking and unlocking operation may be performed without causing undesirable discharge of lubricant in the nozzle.

Figure 4 illustrates a'modified construction,

I parts therein corresponding to like parts in Figures 1 to 3 being indicated by the same reference 7 numbers plus 100. In this form the plug memher III is formed adjacent the end thereof which lies closest to the outer end of the recess I04 with a peripheral series of locking teeth I2I and the conduit member I03 pivotally carries a looking pawl I22 one end of which extends through a slot I23 in the conduit member to engage the teeth I2I. If desired a spring I 24 may be provided to urge the pawl into locking position.

The pawl I22 normally occupies the position shown in Figure 4 in which it engages the teeth I2I to lock the nozzle and conduit members against relative rotation. When it is desired to adjust the relative angular position of these members the free end of the pawl may be depressed to release the teeth I 2i to permit rotation of the plug III in the recess I04. After the nozzle member has been turned to the desired position the pawl may be released whereupon the spring I24 will again move it into locking position.

While only two embodiments of the invention have been shown and described, it will be apparent that many changes might be made therein and it is not intended to be limited to the exact forms shown or otherwise than by the terms of the appended claims.

I claim:

1. A lubricant discharge nozzle comprising, a'

rigid conduit member, a rigid nozzle member having means for sealing engagement with a lubricant receiving fitting, means forming a swivel connection between said members whereby connection.

2. A lubricant discharge nozzle comprising, a conduit member formed with a lubricant passage and a cylindrical recess whose axis lies at an angle to the conduit member, a nozzle memher having means formed for sealing engagement with a lubricant receiving fitting and having a portion. at an angle equal to the angle between the conduitand recess and lying in and forming a lubricant tight seal with said recess, said nozzle member being formed with a lubricant passage communicating with the passage in said conduit member, and a locking element slidably mounted on said portion of the nozzle member and engageable with the conduit member to lock said members against relative rotation.

3. A lubricant discharge nozzle comprising, a conduit member formed with a lubricant passage and a cylindrical recess .whose axis lies at an sage communicating with the passage in said conduit member, a series of locking teeth formed on the conduit member, and a locking element slidably mounted on said portion of the nozzle member and formed with locking teeth to engage said first named teeth to lock said members against relative rotation.

4. A lubricant discharge nozzle comprising, a conduit member formed with a lubricant passage and a cylindrical recess whose axis lies at an zle member being formed with a lubricant passage communicating with the passage in said conduit member, a series of locking teeth on the conduit member adjacent the outer end of said recess, a locking element splined on said portion of the nozzle member and having a series of locking teeth adapted, in one position of the element, to engage said first-named teeth to lock said members against relative rotation and, in another position of the element, to disengage the first-named teeth to permit relative rotation of the members, and resilient means to urge said element toward said one position.

5. A lubricant discharge nozzle comprising a conduit member formed with a lubricant passage and a cylindrical recess, the axis of said recess lying at an angle to the axis of the conduit member, a nozzle member formed with an angle equal to the angle between the conduit and recess axes,

and having means for sealing engagement with a lubricant receiving fitting, a plug member se cured to said nozzle member and having an enlarged portion lying in and sealingl'y engaging the walls of said recess, said nozzle member and plug member being formed with a lubricant passage communicating with the passage in the conduit member, and means movable relatively to both the conduit and plug members for locking said members against relative rotation.

6. A lubricant discharge nozzle comprising a conduit member formed with a lubricant passage and a cylindrical recess, the axis of said recess lying at an angle to the axis of the conduit member, a nozzle member formed with an angle equal to the angle between the conduit and recess axes, and having means for sealing engagement with a lubricant receiving fitting, a plug member secured to said nozzle member and hav-.

ing an enlarged portion lying in and sealingly rigid conduit member having a cylindrical re-- cess whose axis lies at an angle to the conduit member, a rigid nozzle member having means for sealing engagement with a lubricant receiving fitting and carrying a part at an angle equal to the angle between the conduit and recess and projecting into and forming a seal with said recess, said part and said recess forming a swivel joint, one of said members being formed with a series of locking teeth. and a pawl pivotally mounted on the other of said members and engageable with said teeth to lock said members against relative rotation.

8. A lubricant discharge nozzle comprising a rigid conduit member having a cylindrical re- 

